performance automatic transmission, th400 stage 1, 500hp, forward shift pattern, automatic valve body, chev, each

Got big power? Performance Automatic's TH400s can handle most crate engines today without a complaint. Starting with the best cores available, Performance Automatic works its magic with improved shift calibrations, heavy-duty clutches, and upgraded sprags. They finish them off with a new pan and drain plug to give you dependability for the road ahead. Performance Automatic's TH400 can handle most crate engines today without a complaint. Starting with the best cores available Performance Automatic works its magic with improved shift calibrations, Heavy Duty clutches and upgraded sprags. Finished off with a new pan and drain plug and you have dependability for the road ahead. Heavy Duty Clutch Valve Body Shift Package Chrome Pan 500 HP Rating